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From: flee@dictionopolis.cs.psu.edu (Felix Lee)
Newsgroups: comp.lang.c
Subject: Re: more on TRUE and FALSE (side-comment)
Message-ID: <F+lde642@cs.psu.edu>
Date: 17 Sep 90 17:01:23 GMT
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>Personally I hate 'writing' programs with :
>  if (strcmp(name,"hippo")==0) ....

Try writing this instead:
	IF(strcmp(name, "hippo"), L10, L20, L10)
  L10:	printf("%s is not a hippo\n", name);
	GOTO(L30)
  L20:  printf("a hippo\n");
	GOTO(L30)
  L30:	CONTINUE

And here are the macros that make it possible:

#define IF(e,a,b,c) {int _=(e);if(_<0)GOTO(a)else if(_>0)GOTO(c)else GOTO(b)}
#define GOTO(x) goto x;
#define CONTINUE ;

Exercise for the reader:
* The printf statements are ugly.  Define FORMAT and WRITE statements.
You will probably need functions (in addition to/instead of) macros.
--
Felix Lee	flee@cs.psu.edu